Third to jonas thieleman



T. L. RIVERS.

GGGGGGGGGG G. y

Patented Apr. 5, 1892.

UNITED STATES PATENT OFFICE.`

THOMAS LANGDON RIVERS, OF NEWARK, NEW JERSEY, ASSIGNOR OF ONE- THIRD TO JONAS THIELEMAN, OF SAME PLACE.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 472,395, dated April 5, 1892. Application iiled October 6, 1891. Serial No. 407,894. (No model.)

To aZZ whom t may concern: slots H in the sides of the draw-bar. When Be it known that I, THOMAS LANGDON RIV- this redis drawn to the rear, (by means not ERS, a citizen of the United States, residing shown and forming no part of the present inat Newark, in the county of Essex and State vention,) the face of the catch will move out 55 5 of New Jersey, have invented a new and useof the path of the lug L; but at other times ful Oar-Coupling, of which the following is a said face stands in such position that as the specification. lug moves into the opening O when the jaw Thisinvention relates to car-couplings, and is closed the corner of the lug will engage more especially to that class thereof known said face, bear it to the rear, pass over its 6o 1o as twin jaws, and the object of the same is edge, and then be caught and held thereby to produce certainimprovementsin the shapes as the catch springs forward under the force of the parts of such couplings. of its springs S. The front end of the jaw is To this end the invention consists in a carpreferably provided with the usual horizontal coupling of the specific construction hereinnotch N, intersected by a vertical pin-open- 65 I5 after more fully described and claimed, and ing, whereby this draw-head may be connected as illustrated on the accompanying sheet of with another employing the ordinary pin-anddrawings, whereinlink coupling.

Figure l is a perspective View of the end of Referring now to Fig. 3 it will be seen that a car with my coupling attached. Fig. 2 is a the face of the front end E of the draw-head 7o 2o. horizontal section through one draw-head from the point l, which is adjacent the sharp with the jaw open and aplan View of another edge P at the left side of said front end, to coupling approaching with its jaw open. Fig. the point 2, where the rounded edge R com- 3 is a plan view of two couplings connected, mences, is struck on a curved line exactly coshowng them in the position they occupy incident with the outer face of thejaw from a 75 25 when the train is being backed. Fig. 4. is a point 3 on its back toapoint eat the extremity similar view, the train being under way, showof its free end. Hence when the draw-heads ing one draw-head in dotted lines as in roundare driven together the face of each drawing CU1`V5 bar will exactly iit the back of each jaw. This Referring to the said drawings, the letterO is especially advantageous in the act of coup- 8o 3o designates a car-body, beneath the center of ling,because it insures the automatic turning which is secured a draw-head D, whose front of the jaws on their pivots to such positions end Eis approximately U-shaped in plan, that the catches will engage their lugs, the coming to a sharp edge or point P at the left reason being that at any time before these side and terminating in a rounded edge R at faces arein complete contact throughout their 8 5 3 5 the right side, as seen in the various plan lengths the draw-head will be bearing the free views. W`ithin the'body of this draw-head is end of the jaw to the rear. a large opening O, which is extended to the Referring now to Fig/1, it will be seen that right and through the right side of the front the inner faces of the jaws from a point 4. at end, asseen in Fig. l, so that this side is bithe extremity of the free end of each to a 9o 4o urcated, and through the ears thus formed is point 5 on the line of the inner face, where passed a Vertical pivot bolt or pin V. the body ends and the lug commences, are J is the swinging jaw, having a lug L at its struck on curved lines, which are also exactly rear end, which is pivotally mounted on said coincident. It will also be noticed that the bolt and whose rear extremity passes intosaid width of the jaw indicated by the line 6 is 95 45 opening O as the jaw is turned inwardly. less than the width of the opening in rear of Moving longitudinally within the body of it, or between its inner face and the face of the the draw-headis a catch O, having a beveled draw-head indicated by the line 7. Freni this front face F, that projects into said opening construction it follows that after the cars have O, the catch being borne normally forward by been coupled and tension is again exerted roo 5o a spring S, and T is a transverse rod passing thereon the faces 1 2 and 3 et draw out of conthrough this catch and through horizontal tact, as seen in Fig. 3, and the two faces 4 5 come into contact, this contact being perfect, as seen in Fig. 4, and atiording` a powerful interlocking of the two couplings. Furthermore, the space outside each jaw then becomes useful in permitting the turning of the couglings out of alignn1ent,as seen in dotted lilies in Fig. 1, and in this case the inner side of the outer extremity of the jaw on the coupling of that car which is turned rocks or rolls on its seat against the inner face of the opposite jawit the turn is to the left, as shown, or oppositely if the turn is to the right. The specific construction of the several faces of the parts of this drawhead conduce to the successful operation of the whole, the production of a powerful and substantial coupling, and the direct contact, either under tension or in hacking, of the greatest possible area of faces consistent with the loosenessin theinterlocking of parts necessary to permit the coupled cars to round a curve of the smallest radius em ployed in roadbuilding. By havingthe front end and jaw unimpeded vertically two coup lings ol this character will operate successfully, even though they he in different horizontal planes. The sizes of parts, their materials, and their specific construction with respect t0 details, other than those hereinafter claimed, are matters of no moment in the present invention.

What is claimed as new is- In a car-coupling,t11e combina-tion of a drawhead provided, With a longitudinal opening and having horizontal slots in its sides, a pivoted jaw provided at its inner end with a lug, a spring-actuated catch arranged in the longitudinal opening of the draw-head and having its outer end beveled and adapted to engage the jaw, and a transverse pin passing through the catch and arranged in said slots, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

THOMAS LANGDON RIVERS.

Witnesses:

S. A. SMITH,

monos D. MAUR. 

